The tuning jungle is big, the range of products available is massive and the possibilities are almost infinite. Over the years, a range of most wanted combinations have crystallised in the area of road tuning which fulfil the same requirements: a clear increase in performance, a better exhaust performance and higher top speed, good durability, easy installation, no or limited changes to the engine case, conversion-back possibility, and a good price performance ratio.

The Tuning Kits include most customers' and the SIP team's favourite combinations. They are a very good upgrade for the corresponding engine. They are sporty but great for touring use at the same time. They include all the necessary small components and are therefore the ideal first step for anyone with no previous knowledge of tuning whatsoever.

The ROAD Kit is the starter kit. With this kit, attention has been paid to providing a low cost package which still provides superior acceleration and a higher top speed.

The SPORT Kit contains a high rev cylinder and frequently includes a bigger carburettor. This results in more power and higher speed. The carburettors mostly come without separate lubrication. Those who mix themselves know what happens in the combustion chamber.

The carb. jetting is an approximate value and at 0 m above mean sea level, Hamburg differs from the alps. Both kits represent a sound basis for further tuning. This is always associated with a change of crankshaft, however, which involves opening the engine. If the engine is already old and has done a lot of kilometres, an engine overhaul is recommended. If you're going to open the engine, you are advised to take the opportunity to extend your tuning job to include the crankshaft and gear components.

Conclusion: Tuning kits enable beginners to save money and stress and to benefit from the tuning experience the SIP team has gained over many years.

125-177cc tuning is very thankful and reliable.

With 11 KW, the SERIE PRO kit stretches the HP category on the A1 driving license to its limit. It is also the only kit that is officially approved by the TÜV (German Ministry of Transport). With a little over 10 PS, the D.R. kit is a very good ROAD kit. The POLINI kit increases the performance from the original approx 6 HP to approx. 12 PS. The gear cog with 22 teeth transmits the higher revs into speed. Both kits are 'plug&play' tuning kits and do not involve changing the engine case. The kits for the 2 transfer ports come with a modified racing cylinder with matching cylinder base spacer. With the kits for the Vespa PX125-200 E Lusso`95->/`98/MY/`11/Cosa 2 models, the COSA 2 clutch gear wheel / friction plates are also included. The carburettors also come with separate lubrication.

SIP-TIP: A lighter SIP flywheel or a VESPATRONIC/PARMAKIT ignition are also recommended. An Italian/English racing exhaust, a racing crankshaft, a bigger carburettor, GRAND-SPORT piston and MMW cylinder head are the next steps.